PIC24EP128GP202T-I/SS - 16-bit 70 MIPS MCU, 128KB Flash | Microchip
MPN: PIC24EP128GP202T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.62 | $5.62 |
| 10 | $5.05 | $50.50 |
| 100 | $4.49 | $449.00 |
| 500 | $3.92 | $1,960.00 |
| 1,000 | $3.36 | $3,360.00 |
PIC24EP128GP202T-I/SS Overview
A 16-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, RAM, peripherals, and I/O into one package. The PIC24E architecture is a 16-bit modified-Harvard RISC core optimized for deterministic real-time control, sitting in the broader hierarchy of microcontrollers -> embedded processors -> semiconductors. The PIC24EP128GP202T belongs to the "Enhanced" PIC24E sub-family, which adds hardware Op-Amps, comparators, CTMU (Charge Time Measurement Unit), and the Peripheral Trigger Generator (PTG) for chained, autonomous peripheral sequencing.
Key features of this part include 70 MIPS CPU performance at up to 60 MHz, a single 3.0 V-3.6 V supply, two on-chip operational amplifiers (usable for signal conditioning before the ADC), two analog comparators with programmable reference, a 10/12-bit ADC with up to 1 Msps, PWM modules, and the CTMU for capacitive touch or precise time measurement. The "GP" designation indicates general-purpose peripherals, while the "T" suffix is a packaging identifier for tape-and-reel supply. The "-I/SS" suffix indicates the industrial temperature grade (-40 °C to +85 °C) and the SSOP-28 package.
Architecturally, the PIC24E core uses a 16-bit instruction word with 24-bit addresses, supporting a linear 24-bit program space and a 16-bit data path. The PTG allows up to 32-step trigger sequences that can drive ADC conversions, PWM updates, and other peripherals without CPU intervention, freeing the core for application logic. Combined with the integrated Op-Amps, designers can build closed-loop analog control systems using only the PIC24EP128GP202, no external analog front-end required.
Typical applications include industrial motor control, sensor signal conditioning, LED lighting control, switched-mode power supply (SMPS) digital control, medical instrumentation, automotive body and accessory modules (industrial temperature range), and consumer appliances. The CTMU makes the part well suited for capacitive touch interfaces, while the Op-Amps and ADC enable direct interface to bridge sensors, thermocouples, and current shunts.
When designing with this MCU, allocate pin budget carefully - SSOP-28 has only 28 pins, so the two Op-Amps and two comparators may share I/O with digital functions via PPS (Peripheral Pin Select). Use Microchip's MPLAB X IDE and XC16 compiler for firmware development; both are free and integrate with the PIC24E instruction set and DSP library.
This page synthesizes current distributor pricing, drop-in same-package alternatives, application notes, and design guidance not consolidated in the manufacturer datasheet.
Drop-in alternatives for PIC24EP128GP202T-I/SS — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC24EP128GP202T-I/SS (same form factor and footprint) — differing in Package, Program Memory (Flash), Comparators, Core Architecture, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP128GP202-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP128GP202-I/SO
✅ Drop-In✓ In Stock
$2.98 / Unit
View Datasheet →PIC24EP128GP202-E/SS
✅ Drop-In✓ In Stock
$2.71 / Unit
View Datasheet →PIC24EP64GP202-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.5 / Unit
View Datasheet →PIC24EP64GP203-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24EP128GP202T-I/SS Maximum Ratings & Electrical Characteristics
| Product Family | PIC24EP |
| Series | PIC24EP128GP202 (General Purpose, 16-bit) |
| Core | PIC24E 16-bit dsPIC/PIC24E RISC |
| CPU Speed | 70 MIPS |
| Maximum Clock Frequency | 60 MHz |
| Program Memory (Flash) | 128 KB (43K x 24) |
| RAM | 16 KB |
| EEPROM | 4 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40 °C to +85 °C (Industrial) |
| Package | SSOP-28 (5.30 mm body width) |
| Mounting Type | Surface Mount |
| On-Chip Op-Amps | 2 |
| Comparators | 2 (with programmable reference) |
| Special Features | CTMU, PTG (Peripheral Trigger Generator) |
| RoHS Status | Compliant |
| Supply Form | Tape and Reel ("T" suffix) |
PIC24EP128GP202T-I/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input; drive low to reset |
| Pin 2 | AN0/RP0 — Analog input 0 / Remappable pin 0 |
| Pin 3 | AN1/RP1 — Analog input 1 / Remappable pin 1 |
| Pin 4 | PGED1/AN2/RP2 — Programming data / Analog input 2 / Remappable pin 2 |
| Pin 5 | PGEC1/AN3/RP3 — Programming clock / Analog input 3 / Remappable pin 3 |
| Pin 6 | AN4/RP4 — Analog input 4 / Remappable pin 4 |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 9 | OSC1/CLKI/AN5/RP5 — Crystal oscillator input / External clock / Analog 5 / Remappable pin 5 |
| Pin 10 | OSC2/CLKO/AN6/RP6 — Crystal oscillator output / System clock out / Analog 6 / Remappable pin 6 |
| Pin 11 | AN7/RP7 — Analog input 7 / Remappable pin 7 |
| Pin 12 | AN8/RP8 — Analog input 8 / Remappable pin 8 |
| Pin 13 | AN9/RP9 — Analog input 9 / Remappable pin 9 |
| Pin 14 | TMS/AN10/RP10 — JTAG TMS / Analog 10 / Remappable pin 10 |
| Pin 15 | TCK/AN11/RP11 — JTAG TCK / Analog 11 / Remappable pin 11 |
| Pin 16 | TDI/AN12/RP12 — JTAG TDI / Analog 12 / Remappable pin 12 |
| Pin 17 | TDO/AN13/RP13 — JTAG TDO / Analog 13 / Remappable pin 13 |
| Pin 18 | RP14/OC1 — Remappable pin 14 / Output Compare 1 |
| Pin 19 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 20 | VSS — Ground reference |
| Pin 21 | RP15/OC2 — Remappable pin 15 / Output Compare 2 |
| Pin 22 | RP16/U1TX — Remappable pin 16 / UART 1 transmit |
| Pin 23 | RP17/U1RX — Remappable pin 17 / UART 1 receive |
| Pin 24 | RP18/SDA1 — Remappable pin 18 / I2C 1 data |
| Pin 25 | RP19/SCL1 — Remappable pin 19 / I2C 1 clock |
| Pin 26 | RP20/SPI1SDO — Remappable pin 20 / SPI 1 data out |
| Pin 27 | RP21/SPI1SDI — Remappable pin 21 / SPI 1 data in |
| Pin 28 | RP22/SPI1SCK — Remappable pin 22 / SPI 1 clock |
Typical Applications
PIC24EP128GP202T-I/SS is suitable for 6 applications: Industrial Motor Control, Capacitive Touch User Interfaces, Switched-Mode Power Supply (SMPS) Digital Control, Sensor Signal Conditioning, Medical Instrumentation, LED Lighting Control.
Industrial Motor Control
The PIC24EP128GP202T-I/SS is well suited for industrial motor control applications including BLDC, PMSM, and stepper drives. Its 70 MIPS core executes field-oriented control (FOC) loops within the sub-10 µs update rates required for high-RPM motors, while the integrated op-amps interface directly to current shunts for closed-loop torque control without an external analog front-end. The Peripheral Trigger Generator (PTG) sequences ADC conversions and PWM updates autonomously, reducing CPU load and jitter. With 128 KB Flash, designers can integrate motor-control libraries and protection routines in firmware without external memory.
Recommended
Capacitive Touch User Interfaces
The CTMU (Charge Time Measurement Unit) integrated in the PIC24EP128GP202T-I/SS enables robust capacitive touch sensing without an external touch controller. The CTMU charges a touch-pad capacitance with a known current source and measures discharge time via the ADC, supporting up to ~10 channels via PPS pin mapping. The 16-bit core processes touch events in real time while managing LED feedback, haptic control, and communication. The 128 KB Flash holds a touch library plus application firmware, eliminating the BOM cost and PCB area of an external touch IC.
Recommended
Switched-Mode Power Supply (SMPS) Digital Control
The PIC24EP128GP202T-I/SS is used as a digital controller for isolated and non-isolated DC-DC converters, including buck, boost, and PFC stages. Its 70 MIPS DSP engine implements digital PID or state-machine-based control loops at 100-500 kHz switching frequencies, while the high-speed PWM and ADC peripherals sample current and voltage with sub-microsecond latency. The integrated op-amps condition feedback signals, and the PTG triggers ADC conversions synchronously to PWM edges for jitter-free sampling. Industrial temperature grade (-40 °C to +85 °C) suits server, telecom, and industrial PSU applications.
Recommended
Sensor Signal Conditioning
The PIC24EP128GP202T-I/SS integrates two operational amplifiers and a 10/12-bit ADC, making it ideal for direct interface to bridge sensors, thermocouples, RTDs, and pressure transducers. The on-chip op-amps amplify low-level signals (e.g., 1 mV/V bridge outputs) without external instrumentation amplifiers, while the ADC digitizes at up to 1 Msps with selectable resolution. The CTMU can also perform ratiometric measurements on resistive sensors. With 16 KB of RAM, designers can implement digital filtering (moving average, Kalman) and linearization algorithms entirely in firmware.
Recommended
Medical Instrumentation
Medical devices such as portable spirometers, pulse oximeters, infusion pump controllers, and patient monitoring peripherals use the PIC24EP128GP202T-I/SS as the primary microcontroller. The 70 MIPS core runs DSP-based SpO2 and heart-rate algorithms in real time, while the analog peripherals (op-amps, ADC, comparators) interface to photo-plethysmography (PPG) sensors. Industrial temperature grade supports hospital environments, and Microchip's IEC 60730 Class B safety library helps accelerate compliance certification for home-healthcare devices.
Recommended
LED Lighting Control
Architectural and commercial LED lighting fixtures use the PIC24EP128GP202T-I/SS for color-mixing, dimming, and DMX-512/RDM control. The 70 MIPS core computes 16-bit PWM duty cycles for multi-channel RGBW or tunable-white arrays with sub-percent resolution, while the CTMU handles touch-based dimming interfaces. The PTG sequences PWM updates across channels without CPU intervention, freeing the core for wireless (BLE/Zigbee) communication stacks. With 128 KB Flash and 16 KB RAM, the MCU hosts both lighting control firmware and a wireless protocol stack.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP128GP202T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP128GP202-I/SS | PIC24EP128GP202-I/SO | PIC24EP128GP202-E/SS | PIC24EP64GP202-I/SS | PIC24EP64GP203-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-28 | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same |
| Flash Memory | 128 KB | 128 KB - identical | 128 KB - identical | 128 KB - identical | 64 KB -50% | 64 KB -50% |
| RAM | 16 KB | 16 KB - identical | 16 KB - identical | 16 KB - identical | 8 KB -50% | 8 KB -50% |
| Maximum CPU Speed | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz - identical | 70 MIPS / 60 MHz - identical | 70 MIPS / 60 MHz - identical | 70 MIPS / 60 MHz - identical | 70 MIPS / 60 MHz - identical |
| Operating Temperature | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C - identical | -40 °C to +85 °C - identical | -40 °C to +125 °C (Extended) | -40 °C to +85 °C - identical | -40 °C to +85 °C - identical |
| Operating Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V - identical | 3.0 V to 3.6 V - identical | 3.0 V to 3.6 V - identical | 3.0 V to 3.6 V - identical | 3.0 V to 3.6 V - identical |
| On-Chip Op-Amps | 2 | 2 - identical | 2 - identical | 2 - identical | 2 - identical | 2 - identical |
| Shipping Carrier | Tape & Reel ("T") | Tube (no "T") | Tube (no "T") | Tube (no "T") | Tube | Tube |
Key Differentiators
- On-chip dual op-amps plus CTMU for analog signal conditioning (vs PIC24FJ64GA002-I/SS)
- 70 MIPS performance at 60 MHz with extended instruction set (vs PIC24EP64GP202-I/SS)
- Industrial temperature range with 128 KB Flash in compact SSOP-28 (vs PIC24EP128GP202-E/SS)
Design Notes
Place a 1 µF X7R ceramic bypass capacitor directly on each VDD pin (8 and 19) with a trace length under 3 mm to the VDD/VSS pair. Add a bulk 10 µF tantalum or ceramic cap at the regulator output. The PIC24EP core generates fast switching transients on the supply; insufficient decoupling causes ADC noise and PLL jitter. The VSS pins (7 and 20) MUST be solidly tied to the ground plane to minimize ground bounce.
Route analog signals (AN0-AN13) and digital signals on separate PCB layers or with a ground-plane split. Keep the analog traces short and surrounded by grounded copper pour. The on-chip op-amps are sensitive to common-mode noise; the input traces should not run parallel to switching signals or PWM outputs. Use a star-ground topology converging at the VSS pin closest to the analog reference capacitor.
Configure the JTAG/debug pins (TMS/TCK/TDI/TDO, pins 14-17) only when needed; if JTAG is unused, set the JTAGEN fuse OFF and re-route those pins as GPIO via PPS. Otherwise, the pins are tied up/down internally and cannot be used as standard GPIO, silently wasting 4 valuable I/O lines in SSOP-28 designs. Also verify that the MCLR pin (pin 1) has a 10 kΩ pull-up to VDD and a 100 nF cap to ground for clean reset.
At 60 MHz operation with peripherals active, the SSOP-28 package dissipates up to approximately 200 mW. The thermal resistance θJA is around 90 °C/W on a 2-layer JEDEC test board; ensure the design exposes sufficient copper (at least 100 mm² of top-layer copper around the package) and keep ambient temperature within the industrial grade limit. For -40 °C to +125 °C (extended grade), use the PIC24EP128GP202-E/SS variant and design the PCB to keep junction below 150 °C.
Compliance Information
RoHS and REACH compliant per distributor listings. AEC-Q100 not applicable (general-purpose MCU, not automotive-grade qualified). Industrial temperature grade -40 °C to +85 °C.
